![Have You Seen This Giant 90 Foot Deep Sinkhole In Alpena Michigan?](http://townsquare.media/site/44/files/2022/05/attachment-alpena-michigan-sinkhole-picture.jpg?w=980&q=75)
Have You Seen This Giant 90 Foot Deep Sinkhole In Alpena Michigan?
Growing up I heard people on the news talk about giant sinkholes that would open up out of nowhere and swallow up an entire car. But I never knew that a sinkhole could happen underwater. Turns out they can and one of the biggest ones in Michigan is located in Alpena.